Fumigator



(No Model.) Y

o. P. LAUBER.4

PUMIGATOR.

170.577,86?. PatentedMar. 2, 1897.

W. F E M 2. l.

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STATES l ATENT OFFICE.

FUMIGATOR.

SPECIFICATION forming part of Letters Patent No. 577,867, dated March 2,1897. i

Application filed May 22, 1896. Serial No. 592,671. (No model.)

To @ZZ whom it may concern,.-

Be it known that I, CARL F. LAUBER, a citizen of the United States,residing at Philadelphia, in the county of Philadelphia and State ofPennsylvania, have invented certain new and useful Improvements inFumigators, of which the following is a specification.

My invention relates to a new and useful improvement in fumigators, andhas for its object to provide a device of this description which Will besimple in construction and cheap of manufacture and by means of whichinsect life may be exterminated from plants.

W'ith these ends in view my invention consists in the details ofconstruction and combination of elements hereinafter set forth, and thenspecifically designated by the claim.

In order that those skilled in the art to which this inventionappertains may understand howto make and use the same, I will describeits construction and operation in detail, referring to the accompanyingdrawings, forming a part of this specification, lin which- Figure l is aside View of my improved fumigator; Fig. 2, a central section thereof,and Fig. 3 a section at the line :c @c of Fig. 2.

In carrying out my invention I provide a cylindrical receptacle A ofsufficient size to hold the desired quantity of tobacco or otherfumigating material, and the open end of this cylinder is closed by acap B, having a number of perforations C formed therein to permit theindrawing of the air and the expelling of the smoke, as hereinafter setforth. The opposite end of the cylinder is permanently closed by acircular plug D, having a Harige E of a size adapted to lit within saidcylinder, and upon this annular flange rests the screen F, which latteris preferably of wiregauze or made of any suitable material. By thisarrangement when tobacco is placed in the receptacle, as shown in Fig.2, it rests upon the screen, thus leaving a space G unoccupied. Upon thelower end of the plug is formed a nipple II, by means of which therubber bulb I is attached to said-plug, the bead .I serving to preventthe accidental withdrawal of said bulb, as will be readily understood.

The operation of my improvement is as follows: rlobacco is placed withinthe receptacle, and after being lighted the receptacle is closed by thecover B and the air in the bulb expelled through the receptacle by thepressure of the hand and a fresh quantity of air drawn through saidreceptacle in the-opposite direction by the releasing of the bulb,4which will assume its normal shape by the elasticity of the material ofwhich it is composed. This indrawing of the air will supply thenecessary oxygen to the burning tobacco to continue the smolderingcombustion after the manner of pipe-smoking, and when the air is againexcluded from the bulb the smoke which has been drawn into said bulbwill be forced through the perforations and driven to a dbnsiderabledistance, and when directed toward the plants to be fumigated willcompletely envelop said plants, permeating every part thereof and, as iswell known, exterminating the insect life Whichmay exist thereon. Theupper surface of the cover B is somewhat convexed, the object of whichis to cause the smoke issuing from the perforations to diverge in eitherpassage from the apparatus, thus causing attenuation of said smoke andpermitting it to envelop a larger number of plants.

One of the principal advantages of my improvement is that the device maybe held in the hand and manipulated with little or no effort on the partof the operator, the screen F serving to prevent the clogging of thepassage K by nicotine or the doWnfalling of the tobacco, and the shapeof the plug D preventing a sufficient amount of heat from reaching thebulb to affect the same.

When it is necessary to clean the apparatus, it is easily accomplishedby removing the cover B, which gives access to the cylinder, and alsothe bulb I, which gives access to the opening K, itbeing understood thatthe screen F is also removable.

Having thus fully described my invention, what I claim as new and usefulis In a device of the character described a cylinder, a cover on oneend, said cover having a convex surface with perforations therethrough,a bead formed on said cylinder to limit the position of the cover, aplug secured in the other end by a flange, a wire-gauze rest- IOO ing ousaid flange leaving an air-space be- Xed my signature in the presence oftwo subtWeen the gauze and the plu g, a'nipple formed scribing withesses. with said plug ending in a head, said plug w having a passagetherethrough and au elastic CARL I4' LAUBER' 5 bulb attached to thenipple as and for the Vitnesses:

purpose described. S. S. WILLIAMSON, In testimony whereof I havehereunto af- MARK BUFORD.

